Lock.



A. GR OSSBEGK.

LOCK.

ON FILED JUNE 20,

PPLIGATI UNITED STATES Patented October 25, 1904.

ALBERT GROSSBEGK, OF'ALLEGHENY, PENNSYLVANIA.

4 LOCK.

SPECIFICATION forming part of Letters Patent N 0. 773,319, dated October 25, 1904.

Application filed June 20, 1904.

To fill 1.072101% it ntay concern:

Be it known that I, ALBERT GRossBEoK, a citizen of the United States of America, residing at Allegheny, in the county ofAllegheny and State of Pennsylvania, have in:

vented certain new and useful Improvements in Locks, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in looks, and relates more particularly to such locks as are employed in connection with trunks, chests, and the like and in which the two members of the lock are adapted to automatically engage when brought together.

My invention has for its object the construction of a lock which cannot be opened by other than the key made therefor and in which the lock is entirely within the trunk or other device to which it is applied, whereby it is entirely protected from damage.

Briefly described, the invention comprises two members, a lock-casing provided with a sleeve, in which is arranged one or more spring lock-bars having openings near their ends, a key-stem carried by the lock-bars and projecting into the said sleeve, and a hasp member carrying a catch for engagement with the spring lock-bar when the members are brought into engagement.

The invention will be hereinafter more specifically described in detail, and in so describing the same reference will be had to the accompanying drawings, forming a part of this application, and wherein like numerals of reference will be applied to like parts throughout the different views of the drawings, in which Figure 1 is a detail perspective view showing the hasp member in position. Fig. 2 is a like view showing the lock-casing member in position. Fig. 3 is a detached detail perspective view of the hasp member constructed as a single lock. Fig. 4 is a like view of the lock-casing constructed as a single lock. Fig. 5 is a transverse vertical sectional view of the lock in position with the members in locked engagement. Fig. 6 is a detached detail perspective view of the hasp member as con- Serial No. 213,316. (No model.)

'structed for the double lock. Fig. 7 is a detached detail perspective view of one'member of the lock-casing. Fig. 8 is a like view of the other member of the lock-casing. Fig. 9 is a detached detail perspective view of a part of the double lock-bar lock. Fig. 10 is a disassembled view of a form of key and keystern, and Fig. 11 is a detached detail perspective view of the spring lock-bar with stem to receive the form of key shown in Fig. 10.

To put my invention into practice,I provide a lock-casing embodying two membersa faceplate 1 and a back plate 2. 1n construction, these members are preferably cast, though they may be made out of sheet metal stamped into form. Theface-plate has an inwardlyturned flange 3 at its upper end or'edge and an inwardly-turned flange 4 at its lower edge or end, the plate 3 beingof greater width than the plate or flange 4 and beingprovided with openings 5, depending in shape on the form of the catch, though generally substantially of a T shape, as shown. WVhen cast, the plate 1 has cast integral therewith on its inner face the studs 6, which are provided with threaded apertures 7 to receive the screws which fasten the face-plate to the back plate. This plate 1 is also provided with a plurality of apertures 8, threaded to receive the screws which fasten the lock to the trunk or other chest 9. The back plate 2 is provided with inturned flanges 10 along its side edges, which fit against the face-plate. This back plate is provided with an integral sleeve 11, that fits neatly into an aperture provided. therefor in the trunk or chest. This back plate 2 carries near its lower end a cross-bar 12, which when the back plate is cast is made integral therewith.

Attached to this cross-bar 12 by rivets or like means is one or more spring lock-bars 14, provided adjacent their upper ends with slots 15 and connected together near the said upper ends by a cross-bar 16, firmly aflixed thereto in any suitable manner, as by rivets. These bars are. preferably made of springsteel and are backed by springs 17, secured to the back plate 2. The cross-bar 16 carries a key-stem 18, which extends into the sleeve 11. In Figs. 5, 9 I show this stem 18 as threaded, and in Fig. 11 I show the stem 18' provided with a slot 19 and notch 20, and in this construction use a key 21, having a lug 22 in the bore thereof, which lug slides in the groove 19 in the stem 18 and is turned into the notch 20 to hold the key in engagement with the stem. The key 21 (shown in Fig. 5) has a threaded bore to engage with the threaded stem 18. In connection with this lock-casing and the spring lock-bars described I employ a hasp member com prising a plate 23, provided with a plurality of openings to receive the screws which fasten the same to the lid 2a of the trunk or chest. At its lower end or edge this plate 23 has a flange 25,

which carries integral catches 26, the lugs of,

which engage in the slots 15 of the spring lock-bars. The lock described embodies two lockbars, and in Figs. 3 and A I show the same embodiment of invention arranged with a single lock-bar, and as the construction is identical except for the duplication of parts in the double lock the same reference-immerals have been applied to the different views.

'hen the lid of the trunk or chest is closed down, it will be observed that the catches 26 automatically engage with the lock-bar or lock-bars, and to unlock the key is engaged with the stem and pulled outwardly, so as to draw the lock-bar or lock-bars out of engagement with the lugs of the catches. whereby the lid may be raised.

The lock is entirely inclosed within the device to which it is attached, and consequently is protected against damage, and. when the key is removed a perfectly plain surface is obtained on the exterior of the trunk or chest. As it requires an outward pull on the spring lock-bars to disengage the same from the catches, it is an extremely difficult matter to open the lock with other than the key made therefor.

W hile I have shown and described the invention in detail as it is practiced by me, yet it will be evident that various changes may be made in the details of construction without departing from the general spirit of the invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a look, a lock-casing comprising a face-plate and a back plate, said face-plate having flanged ends, one of which has catchopenings, said back plate having interned side edges, a cross-bar carried by the back plate, spring lock-bars carried by the crossbar and provided with catch-openings near their upper ends, a cross-bar connected to the spring lock-bars, a key-stem connected to said cross-bar to be engaged by a key, and a hasp member having catches for entry through the catch-openings in the flange of the face-plate and engagement with the openings in the ends of the lock-bars, substantially as described.

2. In a lock, a lock-casing provided with an integral sleeve, a spring lock-bar within the casing and provided near its one end with an opening, a key-stem carried by the lockbar and projecting into the said sleeve to be engaged by a key, and a hasp member having a catch for engagement with the opening in the spring lock-bar.

In testimony whereof I afiix my signature in the presence of two witnesses.

ALBERT GROSSBECK.

\Vitnesses:

WV. P. SHEPLEY, A. M. Rnra'r'ro. 

